1st are you legal? If not, the health dept might shut you down and you will be out the money paid There are many posts on this subject and lots and lots of hints & suggestions. Try a search of 'wedding fair'; 'bridal fair'; 'bridal fare'; and other such words.

Yes, do samples. In my state one *MUST* cup (w/lid) any food item to be given to the public. I do this at the shop the night before. Bake sheets, split & fill then cut into 1x1x2 pieces, place in cup then squirt some frosting on. It goes pretty fast once you get used to it. Bigger pieces really aren't necessary. Most people who come to those shows make a day of it by 1st going to bkfst/brunch and are too full to want even a taste of cake When the sample is cupped they can take it home to eat later. Put a sticker on it w/your shop name & phone &/or address If they want more/another taste they are free to come back (usually another flavor or 'for the groom to try'). Do provide forks and napkins.

There are soooooooo many things to consider. Dress nice; take an extra pr of shoes and change mid-way thru the day as most likely you will be on your feet all day. Take a sweater - venues are often cold. Take some snacks - you might not get away from your booth to eat. Make dummy cakes - make 2 different designs on one cake; on sqs you can make each side a different design. Don't take too many but be sure to make different sizes - some small; one very tall; etc. If you make favors show them; a groom's cake; shower designs; even a b'day cake or two to show off your skills & let people know you are not just a wedding cake shop